231303151 has 2 divisors, whose sum is σ = 231303152. Its totient is φ = 231303150.

The previous prime is 231303133. The next prime is 231303167. The reversal of 231303151 is 151303132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231303151 - 2⁵ = 231303119 is a prime.

It is a super-2 number, since 2×231303151² = 107002295325057602, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231303551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115651575 + 115651576.

It is an arithmetic number, because the mean of its divisors is an integer number (115651576).

Almost surely, 2^231303151 is an apocalyptic number.

231303151 is a deficient number, since it is larger than the sum of its proper divisors (1).

231303151 is an equidigital number, since it uses as much as digits as its factorization.

231303151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 231303151 is about 15208.6538194542. The cubic root of 231303151 is about 613.8475352394.

Subtracting from 231303151 its sum of digits (19), we obtain a palindrome (231303132).

Adding to 231303151 its reverse (151303132), we get a palindrome (382606283).

The spelling of 231303151 in words is "two hundred thirty-one million, three hundred three thousand, one hundred fifty-one".